Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
摘要:
A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 +/- 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 +/- 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure. (C) 2014 Elsevier Ltd. All rights reserved.
Antiparasitic agents. 6. Synthesis and anthelmintic activities of novel isothiocyanatophenyl-1,2,4-oxadiazoles
作者:R. D. Haugwitz、A. J. Martinez、J. Venslavsky、R. G. Angel、B. V. Maurer、G. A. Jacobs、V. L. Narayanan、L. R. Cruthers、J. Szanto
DOI:10.1021/jm00147a019
日期:1985.9
The syntheses and anthelmintic activities of 31 3- and 5-(isothiocyanatophenyl)-1,2,4-oxadiazoles are reported. In the primary anthelmintic screen, 3-(4-isothiocyanatophenyl)-1,2,4-oxadiazole (39) showed 100% nematocidal activity and 3-(2-furanyl)-5-(4-isothiocyanatophenyl)-1,2,4-oxadiazole (63), 3-(2-furanyl)-5-(2-chloro-4-isothiocyanatophenyl)-1,2,4-oxadiazole (64), and 3-(2-furanyl)-5-(4-chloro-3-isothiocyanatophenyl)-1,2,4-oxadiazole (66) showed 100% taeniacidal activity when administered orally to mice. The two most active members of this series, 39 and 63, were active against the gastrointestinal nematodes of sheep at 100 mg/kg. In addition, 39 was also found to be active against hookworms in dogs at a single, oral dose of 200 mg/kg.
[DE] OXADIAZOLYL-U. THIADIAZOLYL-BENZOYLHARNSTOFFE UND IHRE VERWENDUNG ALS SCHÄDLINGSBEKÄMPFUNGSMITTEL<br/>[EN] OXADIAZOLYL AND THIADIAZOLYL BENZOYL UREAS AND THE USE THEREOF AS PESTICIDES<br/>[FR] OXADIAZOLYL BENZOYL UREES ET THIADIAZOLYL BENZOYL UREES ET LEUR UTILISATION EN TANT QUE PESTICIDES
申请人:BAYER AG
公开号:WO2003016293A1
公开(公告)日:2003-02-27
Die vorliegende Erfindung betrifft neue Oxadiazolyl- und Thiadiazolyl-benzoylharnstoffe der Formel (I) in welcher R?1, R2, R3¿, n und Het die oben angegebene Bedeutung haben,Verfahren zu ihrer Herstellung und ihre Verwendung als Schädlingsbekämpfungsmittel.
[EN] CHROMAN COMPOUNDS AS 5 -HTlB ANTAGONISTS<br/>[FR] COMPOSES CHROMANE UTILISES EN TANT QU'ANTAGONISTES DES 5-HT1B
申请人:ASTRAZENECA AB
公开号:WO2007053094A1
公开(公告)日:2007-05-10
[EN] Chroman derivatives according to Formula (I) below: wherein R1, R2, R3 ,and R4 are as defined in the specification, pharmaceutically-acceptable salts, methods of making, pharmaceutical .compositions containing and methods for using the'' same. The compounds are 5-HT1B antagonists and are useful in the treatment of mood and . anxiety disorders as well as cognitive disorders. [FR] L'invention concerne des dérivés de chromane de formule (I) dans laquelle R1, R2, R3, et R4 sont tels que définis dans la description, des sels pharmaceutiquement acceptables de ces dérivés, des procédés de production correspondants, des compositions pharmaceutiques les contenant, ainsi que des procédés d'utilisation desdits composés. Ces composés sont des antagonistes des 5-HT1B et peuvent servir à traiter les troubles de l'humeur et les troubles anxieux, ainsi que les troubles cognitifs.
Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
作者:Daniel Conole、Thorsten M. Beck、Morgan Jay-Smith、Malcolm D. Tingle、Charles T. Eason、Margaret A. Brimble、David Rennison
DOI:10.1016/j.bmc.2014.02.013
日期:2014.4
A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 +/- 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 +/- 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure. (C) 2014 Elsevier Ltd. All rights reserved.
Chroman compounds
申请人:Bernstein Peter
公开号:US20070135442A1
公开(公告)日:2007-06-14
Compounds according to Formula (I) below:
wherein R
1
, R
2
, R
3
, and R
4
are as defined in the specification, pharmaceutically-acceptable salts, methods of making, pharmaceutical compositions containing and methods for using the same.